The generic name of Ligunza is Erythromycin Succinate Granules (Capsules), and the effect usually starts 1 to 2 hours after taking it. Erythromycin Succinate Granules (Capsules) is mainly used for the treatment of bacterial infections such as acute pharyngitis, pneumonia, whooping cough and urinary tract infections in patients who are allergic or resistant to β-lactams such as penicillin, etc. The drug is absorbed after entering the intestine, so when taken on an empty stomach it takes about 1 to 2 hours to reach the peak blood concentration and begin to have an effect. Erythromycin Succinate Granules (Capsules) belongs to macrolide antibiotics, which is relatively stable in gastric acid, and has a certain inhibitory effect on hemolytic streptococcus and streptococcus pneumoniae. The drug has a certain degree of hepatotoxicity, so vomiting, fatigue, rash, jaundice and other side effects may occur after taking the drug, in addition to allergy to this product or other erythromycin preparations, patients with chronic liver disease, liver function impairment and pregnant women are prohibited. Before taking this medication, consult your doctor and use it as prescribed. If you are already taking it, seek medical advice in case of side effects or allergy.